<?php

if(4>3 && 7>12){

  echo __LINE__,"\n";
}

if(4>3 & 7>12){
  echo __LINE__,"\n";
}

if(4>3 & 7){// 001  &  111 =  001
  echo __LINE__,"\n";
}

if(4>3 && 7){
  echo __LINE__,"\n";
}

if(4>3 & 6){// 001  &  110 =  000
  echo __LINE__,"\n";
}

if(4>3 && 6){
  echo __LINE__,"\n";
}

/*
AND
a   b   a.b
0   0   0
0   1   0
1   0   0
1   1   1
*/
